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Need help with Loft feature for Aerofoil

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Loft can be tricky. Please share a link to your document and enable public copies so we can take a closer look.
Most likely the profiles are not connected to the path, or the profile connections are not matching properly.
Usually you would need a few guide curves along with the path. Guide curves work well when going from vertex of profile A to vertex of profile B.
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Have you tried using the Profile Generator feature? (you'll need to add it - click Add Custom Features, search for it and add it)
I've found it works better if I don't use the origin as one of the vertices.
Once you generate one profile (root of the aerofoil), create a new plane generate the aerofoil tip profile - you should be able to loft between them
In the example here I used Sketch 1 to define the vertices